Question

In ancient India, saltpetre was used for fireworks; it is actually?

• A. Potassium Nitrate
• B. Lithium Nitrate
• C. Sodium Nitrate
• D. Calcium Nitrate

Answer 1

Answer:

A. Potassium Nitrate

In ancient India, saltpetre, used in fireworks, is actually potassium nitrate (KNO3). It is also known as nitre and is a component of gunpowder. KNO3 is a chemical compound with the chemical name Potassium Nitrate. Potassium nitrate also called saltpetre or nitre is a white solid soluble in water formed by fractional crystallisation of sodium nitrate and potassium chloride solutions. It occurs naturally as nitre in rocks in India, South Africa and Brazil